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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Alaraimi, A.S. Hashimoto, T. |
| Copyright Year | 2006 |
| Description | Author affiliation: Dept. of Electron. Eng., Univ. of Electro-Commun., Chofu (Alaraimi, A.S.) |
| Abstract | Orthogonal frequency division multiplexing (OFDM) systems for mobile applications suffer from inter-carrier-interference (ICI) due to frequency offset and to time-variation of the channels and from high peak-to-average-power ratio (PAPR). In this paper, we revisit symmetric cancellation coding (SCC) proposed by Sathananthan et al. and compare the effectiveness of SCC employing a fixed subtraction combining with the well-known polynomial cancellation coding (PCC) over Rayleigh fading channels with Doppler spread in terms of the signal-to-interference plus noise power ratio (SINR) and bit-error-rate (BER). We also compare our SCC employing subtraction combining with SCC of Sathananthan et al. employing maximum ratio combining (MRC). Our results show that, our SCC-OFDM gives higher SINR than PCC-OFDM over the flat Rayleigh fading channel, and that this superiority is not maintained under multi-path induced frequency-selective fading unless diversity combining is used. However, we show that, for frequency-selective fading channels, our SCC-OFDM in conjunction with differential modulation in frequency domain shows better performance than PCC-OFDM and normal OFDM for a certain range of Doppler spread. Finally, we also demonstrate that the SCC-OFDM signal has less PAPR compared to the normal OFDM and PCC-OFDM. |
| Starting Page | 1 |
| Ending Page | 5 |
| File Size | 178346 |
| Page Count | 5 |
| File Format | |
| ISBN | 1424400627 |
| DOI | 10.1109/VTCF.2006.291 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2006-09-25 |
| Publisher Place | Canada |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | OFDM Fading Diversity reception Signal to noise ratio Peak to average power ratio Polynomials Noise cancellation Bit error rate Frequency diversity Rayleigh channels |
| Content Type | Text |
| Resource Type | Article |
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